BV302S09012

Overview

The BV302S09012 is a 1.2VA encapsulated power transformer manufactured by Zettler Magnetics, designed for through-hole mounting. It features a primary voltage rating of 230V and provides a secondary output of 9V at 133mA. The unit operates within a temperature range of -40°C to +70°C. Electrical specifications include a primary-to-secondary isolation resistance of 3300MΩ and an inductance of 18.5mH ±20%. The physical dimensions are 32.8mm x 27.8mm with a height of 22.3mm.

Feature Summary

• Fully encapsulated under vacuum pressure for enhanced efficiency and compactness
• Laminated core construction optimized for linear power applications
• Through-hole mounting configuration for standard PCB integration

Applications

• Linear power supply circuits
• General purpose AC to DC conversion stages
• Low power electronic device isolation

Procurement Notes

Verify the specific manufacturer part number against official Zettler Magnetics documentation to ensure compatibility with design requirements. Confirm that the encapsulation type and thermal ratings meet the operational environment standards. Cross-reference electrical parameters such as inductance and isolation resistance with system specifications before finalizing procurement decisions.

Selection Notes

Select this component when a compact, encapsulated transformer is required for low-power applications. Ensure the input voltage matches the 230V primary rating and the load current does not exceed 133mA. Consider the through-hole form factor and physical dimensions for PCB layout constraints. Verify thermal performance within the specified -40°C to +70°C operating range.

Part Context

This component belongs to the BV series of laminated power transformers from Zettler Magnetics. The series is characterized by vacuum-pressure encapsulation, which contributes to smaller size and improved efficiency compared to non-encapsulated alternatives. These transformers are engineered for reliable performance in various consumer and industrial electronics requiring isolated AC power.

Replacement Considerations

Consult official Zettler Magnetics substitution guides or datasheets for verified equivalent part numbers. Do not assume cross-compatibility based on similar VA ratings or dimensions alone. Verify that any substitute meets the same electrical and mechanical specifications.